/Engine/Plugins/Online/OnlineServicesNull/Source/Public/Online/AuthNull.h
void OnInputDeviceConnectionChange ( EInputDeviceConnectionState NewConnectionState, [FPlatformUserId](API\Runtime\Core\Misc\FPlatformUserId) PlatformUserId, [FInputDeviceId](API\Runtime\Core\Misc\FInputDeviceId) InputDeviceId )